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diff --git a/3755/CH14/EX14.3/Ex14_3.sce b/3755/CH14/EX14.3/Ex14_3.sce
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+clear
+//
+//
+//
+
+//Variable declaration    
+V=1200;      //volume(m^3)
+a1=220;      //area of wall(m^2)
+a2=120;      //area of floor(m^2)
+a3=120;      //area of ceiling(m^2)
+C1=0.03;    //coefficient of absorption in wall
+C2=0.80;    //coefficient of absorption in floor
+C3=0.06;    //coefficient of absorption in ceiling
+
+//Calculations
+A1=a1*C1;    //absorption due to plastered walls
+A2=a2*C2;    //absorption due to wooden floor
+A3=a3*C3;    //absorption due to plastered ceiling
+aS=a1+a2+a3;       //total absorption in hall
+abar=(A1+A2+A3)/aS;    //average sound absorption coefficient
+AS=abar*aS;       //total absorption of room(metric sabines)
+T=0.165*V/AS;       //reverberation time(sec)
+
+//Result
+printf("\n average sound absorption coefficient is %0.2f ",abar)
+printf("\n reverberation time is %0.1f sec",T)